Arcane Incense

Incense is sold in units called Duellas, which is equal to 1/3 of an ounce, or the weight of a single gold piece. Traditionally, an incense trader will carry a balance scale and will place one gold piece on one side, and enough incense on the other to level the scale. The price is then negotiated.

One Duella of incense will burn for approximately 30 minutes, and any benefit will not occur until at least 30 minutes of exposure have passed. Unlike potions, multiple creatures can benefit from incense while it burns. As long as the incense is burned in a fairly enclosed area, and there is room for multiple characters to relax, either sitting or lying down, all can benefit from the magic. Use common sense here. Standing around a fire in the woods, with a blowing wind is not going to work all that well. A cozy cave will work great.

Mixing incenses can be dangerous. A character with proficiency with a herbalism kit can combine two types of incense with a DC of 15. Burning two different incenses in the same room will result in each type of incense doing ½ of its usual benefit. Mixing three will create toxic fumes and every creature inhaling the fumes will suffer 1d6 poison damage for each round exposed.